Have a wr7 remote control and a rca stb7766c can I program this remote to operate the converter box

Programming with Direct Entry:

1. Manually turn on the component you wish to program the remote to operate.
2. Find the four-digit code for your brand of TV, VCR, DVD, satellite receiver, cable box, or digital TV converter in the enclosed code lists.
3. Press and hold the CODE SEARCH key until the indicator light turns on.

https://voxxintl.zendesk.com/hc/en-us/articles/225343267-Programming-the-RCA-RCR804BR-or-RCR804BFDR-Universal-Remote-Control

ONCE AGAIN, A SIMPLE GOOGLE SEARCH!
Second thing on the google list for RCRN03BR

Remote Code Finder

RCA 52325, 52454 for digital TV converter box.

If you wish to get more details; check the sites linked here. It has set-up code list & set-up procedure to many popular brand remote controls. Common set-up codes to check with TVs and other devices are given, in the order of the "device's brand name list" in alphabetical order. Pull up older posts.
http://electronicshelponline.blogspot.com/
http://electro-medical.blogspot.com/
http://remotesearch.blogspot.com/
http://electrohelponline.blogspot.com/
Search the site by type in the brand name to your device, in the "Search box at the top right of the display window" to see the set-up codes to your device, with different brand remote controls.
Programming Notes
• If your device does not respond to the remote after trying all codes listed or your brand is not listed in the code list, use the Auto Code Search method to program your remote.
• Sometimes the first code that "works" with your device may operate only a few functions of your device. There may be another code in the code list that performs more functions. Try other codes from the code list for more functionality.
This is a trial and error procedure; and quiet time consuming. You might have to check different codes said for your device.

if you go on line and look up the remote, it will give you the manual and codes to program

Try using directv's :remote control code search engine)search for "Directv remote control programming" enter your device type and it will give you the most recent code for your device

There is no setup codes for Apex or RCA STBs with this GE remote control.

I'm trying to find a universal remote that works with the RCA Stb 7766c digital converter box also seems impossible

Hi,

This is because the remote may got resetted which have been programmed with the cable box.
So please reprogramme the remote with the cable box.It will work.

Thanx